There is a tiny puss filled bubble at the tip of my penis and I have had it ever since I can remember and it has never really been an issue other than the fact that it is an eye sore but in the last couple of days it seems to have gotten irritated or something because it got bigger and is now causing me minor to moderate pain especially when it rubs up against the inside of my pants. it feels like its going to burst. I am sexually active, always use protection and only have sex with one girl. Any help you could give me would be great, maybe a name for it or something, thanks.

I have had this little bubble as long as i can remember and it only recently "flared up" like within the last couple of days. I am assuming it is filled with puss because you can kind of see through the bubble and there is white stuff on the inside. I thought about trying to pop it but i dont know if that would do more harm than good. it has flared up in the past but calms down after a couple of days but never goes away completely. it is possible ive had it since birth. im wondering do you think i should go see a doctor?